The $5 Maple makes a very nice electrode. Another reason I prefer a bullion coin like the Maple to wire is that it is rigid enough to change the surface texture. I like to impart a satiny texture, using the brass- bristled detailing brush. Silver loss from abrasion is no big deal, since I have a spare electrode and more than enough for a lifetime supply. In the long run, DW is more expensive and presents more problems.
A satiny finish on an electrode may, or may not, have an effect on the ratio of ion to particulate in the EIS. I still wonder if there is a dynamic equilibrium between the two species leading to a constancy of that ratio. Matthew
